/*
 * Tasks.java
 *
 * Created on 23.06.2008, 14:07
 *
 * Copyright (c) 2006-2008, Daniel Apatin (ad), http://apatin.net.ru
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * You can also redistribute and/or modify this program under the
 * terms of the Psi License, specified in the accompanied COPYING
 * file, as published by the Psi Project; either dated January 1st,
 * 2005, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package Tasks;

import java.util.Vector;

/**
 *
 * @author ad
 */
public class Tasks {
    
    Vector tasks=new Vector();
    
    private static Tasks instance;
    
    public static Tasks getInstance(){
	if (instance==null) {
	    instance=new Tasks();
	}
	return instance;
    }

    public void add(TaskItem task) {
        tasks.addElement(task);
    }


    public TaskItem get(int index) {
        return (TaskItem) tasks.elementAt(index);
    }
    
    public int size(){
	return tasks.size();
    }

    public void delete(int index) {
        tasks.removeElementAt(index);
    }
    
    public void deleteAll() {
        tasks.removeAllElements();
    }

    void addElement(TaskItem task) {
        tasks.addElement(task);
    }

    public String getXml() {
        StringBuffer str=new StringBuffer();
        str.append("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n<customization>\n<file-operations>");
        for (int index=0; index<tasks.size(); index++){
            TaskItem task=(TaskItem) tasks.elementAt(index);
            String action=task.getAction();
            if (action!=null)
                 str.append(action).append('\n');
        }
        str.append("</file-operations>\n</customization>");
        return str.toString();
    }
}
